During this period, many areas in the United States, such as the East and West coast regions, have been dealing with stifling heat waves. Air conditioners have been buzzing consistently, helping people to stay comfortable.
But what is the ideal temperature setting during a heatwave? What can you do to keep your living space cool during the summer heat?
The U.S. Department of Energy suggests setting the temperature to a level that you find comfortable while also controlling humidity. They emphasize that the smaller the temperature difference between indoors and outdoors, the lower the overall air conditioning costs. Other factors to consider include the health conditions of family members, how much you are willing to pay for electricity, and whether you utilize other cooling methods like fans.
The Environmental Protection Agency’s Energy Star program aims to increase energy efficiency and recommends setting the air conditioner to 78 degrees Fahrenheit (26 degrees Celsius) to achieve optimal comfort and energy efficiency. However, not many people follow this recommendation.
A 2021 Consumer Reports survey found that people using central air conditioning typically set their thermostats to 72 degrees Fahrenheit (22.2 degrees Celsius), which is significantly lower than the Energy Star energy-saving suggestion. None of the respondents chose an air conditioning default temperature above 76 degrees Fahrenheit (24.4 degrees Celsius).
In general, Energy Star recommends raising the temperature by 4 degrees Fahrenheit while sleeping and 7 degrees Fahrenheit when away from home.
Energy Star advises installing a programmable thermostat at home to help regulate the temperature. Placing the thermostat away from sources of heat or cold, such as the air conditioning unit or sun-exposed windows, can be helpful.
Raising the temperature when leaving home can save money, but turning off the air conditioner may lead to higher cooling costs since you might need more electricity to lower the temperature when you return. If you will be away for a week or longer, turning off the air conditioning is worth considering.
For those who go to the office daily or spend weekends outside, turning off the air conditioning will not significantly impact the bills.
There are other methods to keep your room cool. The U.S. Federal Emergency Management Agency (FEMA) states that windows not only allow outside heat to enter but also trap unnecessary heat indoors. Here are some cooling methods:
– Add curtains to block heat from entering;
– Reduce or limit heat-generating appliances;
– Check the seals on doors and windows to ensure they are functioning properly;
– Install ceiling fans to assist with air circulation, but do not rely solely on them for cooling.
EPA data shows that the energy demand for air conditioning is increasing. With the climate warming, the number of hot days is on the rise while cool days are decreasing.